Initial Managed Mode extension API, supporting querying the setting and a stub for enabling the mod…

chrome/common/extensions/docs/static/experimental.managedMode.html

+<div id="pageData-name" class="pageData">Managed Mode API</div>
+
+<!-- BEGIN AUTHORED CONTENT -->
+<p id="classSummary">
+  The <code>chrome.experimental.managedMode</code> module allows extensions to
+  request that the browser enter managed mode, as well as to query whether it
+  is currently in managed mode.
+</p>
+
+<p class="note">
+  <b>Note: </b>Extensions cannot request that the browser leave managed mode.
+  This must be done by the user from within the browser itself.
+</p>
+
+<h2 id="manifest">Manifest</h2>
+<p>
+  You must declare the "managedMode" and "experimental" permissions in your
+  extension's <a href="manifest.html">manifest</a> to use the API. For example:
+</p>
+
+<pre>{
+  "name": "My extension",
+  ...
+  <b>"permissions": [
+    "experimental",
+    "managedMode"
+  ]</b>,
+  ...
+}</pre>
+
+<h2 id="about">About Managed Mode</h2>
+
+<p>
+  Managed mode allows one person to manage the Chrome experience for another
+  person by pre-configuring and then locking a managed User profile.
+  
+  <span class="todo">For more information about Chrome's managed mode, see
+  <b>[TBD]</b>.</span>
+</p>
+
+<h2 id="usage">Usage</h2>
+
+<p>
+  Querying managed mode is straightforward. Simply call <code>get()</code>,
+  providing a callback function to receive the result. For example:
+</p>
+
+<pre>chrome.experimental.managedMode.get(function(details) {
+  if (details.value)
+    console.log('Managed mode is on.');
+  else
+    console.log('Managed mode is off.');
+});</pre>
+
+<p>
+  Entering managed mode is a little bit more complex, because if the browser is
+  already in managed mode, trying to enter it again will have no effect. To
+  avoid confusing users, it's advisable to check whether your extension can
+  enter managed mode (i.e., if it is not already in effect), and visually
+  disable the functionality in your extension if not. You can optionally
+  provide a callback function to <code>enter()</code> to receive the result.
+  For example:
+</p>
+
+<pre>chrome.experimental.managedMode.get(function(details) {
+  if (details.value) {
+    console.log("Managed mode is already in effect.");
+  } else {
+    chrome.experimental.managedMode.enter(function(result) {
+      if (chrome.extension.lastError === undefined) {
+        if (result.success)
+          console.log("Hooray, it worked!");
+        else
+          console.log("Oops, the user changed her mind.");
+      } else {
+        console.log("Aw, snap!", chrome.extension.lastError);
+      }
+    });
+  }
+});</pre>
+<!-- END AUTHORED CONTENT -->